EP 3742976 A4 20211020 - ACOUSTIC FIELD MAPPING WITH ULTRASONIC PARTICLE VELOCITY ESTIMATOR
Title (en)
ACOUSTIC FIELD MAPPING WITH ULTRASONIC PARTICLE VELOCITY ESTIMATOR
Title (de)
SCHALLFELDABBILDUNG MIT ULTRASCHALL-TEILCHENGESCHWINDIGKEITSSCHÄTZER
Title (fr)
CARTOGRAPHIE DE CHAMP ACOUSTIQUE AVEC ESTIMATEUR DE VITESSE DE PARTICULES ULTRASONORES
Publication
Application
Priority
- US 201862621140 P 20180124
- IL 2019050089 W 20190122
Abstract (en)
[origin: WO2019145945A1] A first transducer (20) transmits a first acoustic field (22) at a first frequency into a region (24) of a medium (26), generating oscillatory motion of scatterers (28) disposed in the region. A second transducer (30) transmits acoustic pulses (32, 34) into the region, and receives respective echoes of each pulse scattering off an oscillating scatterer in the region. The pulses are synchronized with the first acoustic field such that a first pulse scatters off the oscillating scatterer when the scatterer is at a first displacement extremum (36), and a second pulse scatters off the oscillating scatterer when the scatterer is at a second displacement extremum (38) that is opposite the first displacement extremum. A computer processor (29) extracts a time shift between the received echoes, calculates a displacement amplitude of the scatterer, and outputs an indication of the displacement amplitude of the scatterer. Other applications are also described.
IPC 8 full level
A61B 8/00 (2006.01); A61B 8/08 (2006.01); A61N 5/00 (2006.01)
CPC (source: EP US)
A61B 8/085 (2013.01 - EP); A61B 8/4477 (2013.01 - EP US); A61B 8/4488 (2013.01 - US); A61B 8/463 (2013.01 - EP); A61B 8/488 (2013.01 - US); A61B 8/52 (2013.01 - US); A61B 8/5223 (2013.01 - EP US); A61B 34/30 (2016.02 - US); A61N 7/00 (2013.01 - US); A61N 7/02 (2013.01 - EP); G01S 7/5202 (2013.01 - EP); G01S 7/52036 (2013.01 - EP); G01S 15/8915 (2013.01 - EP); G01S 15/8952 (2013.01 - EP); G01S 15/899 (2013.01 - EP); A61B 8/4405 (2013.01 - EP US); A61B 8/4488 (2013.01 - EP); A61B 8/488 (2013.01 - EP); A61B 34/30 (2016.02 - EP); A61B 2090/378 (2016.02 - EP); A61N 2007/0056 (2013.01 - EP US); G01S 7/52074 (2013.01 - EP)
Citation (search report)
- [A] US 2010280373 A1 20101104 - FAN LIEXIANG [US], et al
- [A] KR 20170091813 A 20170810 - UNIV SOGANG RES FOUNDATION [KR] & US 2019038253 A1 20190207 - SONG TAI-KYONG [KR], et al
- [A] US 6425867 B1 20020730 - VAEZY SHAHRAM [US], et al
- [A] US 2016120511 A1 20160505 - AZUMA TAKASHI [JP], et al
- [A] US 6875176 B2 20050405 - MOURAD PIERRE D [US], et al
- See references of WO 2019145945A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2019145945 A1 20190801; CN 111970972 A 20201120; EP 3742976 A1 20201202; EP 3742976 A4 20211020; US 2021045714 A1 20210218
DOCDB simple family (application)
IL 2019050089 W 20190122; CN 201980021795 A 20190122; EP 19743270 A 20190122; US 201916964057 A 20190122